THE PINEAL BODY 135 



flask-shaped. There are many intercellular spaces in the end- 

 vesicle. These same observations hold good for Mauritanicus. 



3. Hemidactylus verruculatus. Leydig ('91). 238 This species 

 possesses no parietal eye. There is an end-vesicle which con- 

 tains a brown pigment. The vesicle is drawn out into a small 

 point. 



4. Hemidactylus mabouia. Stemmler ('OO). 374 In this form 

 the pineal organ only is present and the end- vesicle is an atten- 

 uated bud. The proximal portion of the stalk is solid. There 

 is no pigment and no fibers in connection with the organ. 



5. Gehyra oceanica. Stemmler ('00). 374 The parietal eye is 

 not well developed. The pineal organ alone makes its appear- 

 ance and has a definite end-vesicle. The stalk has a lumen in 

 its proximal portion. The cells in the end- vesicle are ependymal 

 in type. There are no folds in the wall. 



AGAMIDAE. 1. Draco volans. Spencer ('86) ; 367 Studnicka 

 ('93). 3S4 There is no parietal eye in this species. The pineal 

 organ is a broad, dorsoventrally compressed end-vesicle con- 

 taining no pigment. 



2. Ceratophora aspera. Spencer ('86). 367 In this form there 

 is no parietal eye. An end-vesicle develops, but there is no 

 parietal foramen. 



3. Lyriocephalus sculatus. Spencer ('86). 367 There is no 

 parietal eye in this species. An end-vesicle exists with an 

 attenuated stalk. There is no pigment, but the animal has a 

 definite parietal spot. 



4. Calotes ophiomachiis and versicolor. Spencer ('86). 367 The 

 epiphysis ends at the edge of the parietal foramen. The 

 parietal eye is present. Spencer saw only rods in the retina. 

 The lens is concavo-convex. Some of the lens cells and retinal 

 cells are pigmented. A well-marked parietal foramen is present 

 and there is a small modified cornea with parietal spots. 



5. Agama hispida. Spencer ('86). 367 This species has a 

 parietal eye, a retina, lens, and a parietal foramen, together 

 with a cornea and parietal spot. 



6. Grammatophora barbata. Spencer ('86). 367 In this form 

 there was found some evidence of a parietal eye, the under 



